I'd build this in open source 3D, with a mind to memory allocation and transferrability between software.
Relevant Skills and Experience
Over a decade designing in 3D, an Associates in Interactive Media, personal renderfarm setup
Proposed Milestones
$150 USD - Interview, specifications, materials/aesthetics, body model, revisions
$272 USD - Full Modeling, texture generation, animation prep, revisions
$300 USD - Render, rigging, file tranfer